Railroad pump-motor



(No Model.) 2 Sheets-Sheet 1.

J. JOHNSON.

RAILROAD PUMP MOTOR No. 425,327. Patented Apr. 8, 1890.

(No Model.) 7 2 Sheets-Sheet 2. J. JOHNSON.

RAILROAD PUMP MOTOR. No. 425,327. Patented Apr. 8, 1890.

UNITED STATES PAT NT Urrrcn.

JOHN JOHNSON, OF MARTLING, ALABAMA.

RAILROAD PUMP-MOTOR.

SPECIFICATION forming part of Letters Patent No. 425,327, dated April 8, 1890.

Application filed Sleptember 14, 1889. Serial No, 323,920. (No model.)

To all whom it may concern:

Be it known that 1, JOHN JOHNSON, a citizen of the United States, residing at Martling, in the county of Marshall and State of Alabama, have invented a new and useful Railroad Pump-Motor, of which the following is a specification.

This invention has relation to a motor for operating a pump at a watering-station of a railway, and among the objects in view are to provide a motor adapted to be operated by a weight, the winding mechanism of which is operated by passing trains.

The invention consists in certain features of construction, hereinafterspecified, and particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a plan of a motor constructed in accordance with my invention. Fig. 2 is a longitudinal section through the track. Fig. 3 is a side elevation of the weigh t-operating mechanism.

Like numerals of reference indicate like parts in all the figures of the drawings.

1 represents any suitable track-supporting trestle, and 2 the track, and between the same and pivoted to the trestle is a lever 3, the free end of which is curved to form a tread i, projecting above the track, and is embraced by a keeper 5. A spring 6 projects from the bottom of the trestle or other suitable support and terminates under the lever 3 in rear of the pivot.

In opposite standards 7, one of which is arranged between the track and the other of which is at one side thereof, and below the tracks, is journaled a loose shaft 8, carrying a ratchet-wheel 9 and a small pinion 10.

11 represents aloosely pivoted gravity-pawl loosely depending from thelever 3 and suspended over and operating in the ratchetwheel at each depression of the lever, the ratchet-wheel and pinion occurring upon that portion of the shaft 8 which is between the rails. A master-gear 2is mounted on the shaft 8 outside of the rails, and a rack-bar 13 is mountedfor reciprocation between guides 15, located upon suitable cross-ties at each side of the small pinion 10,with which said rackbar meshes. A pin 16 projects from the outer face of the rack-bar, and by a rotation of the pinion is designed to be brought into contact with the gravity-pawl and raise the same from over the ratchet wheel, so that under certain conditions a depression of the lever 3 by the wheels of a passing train will have no effectupon the shaft 8.

To one side of the outer of the pair of standards 7 is located the side frames 18 of the motor, and in said side frames and proj ecting through the inner one of the same and j ourn aled in the standards 7 there is journaled a drum-shaft 19, having a small pinion 20, meshing with the mastergear. Upon the shai't l9 and within the frame of the motor there is mounted a drum 2]., and at one side of the same a large gear 22,meshing with a small pinion 23, mounted upon an adjacent transverse shaft 2%, which also carries a large gear 25, which meshes with a small pinion 26 on a succeeding shaft 27, carryin g a large gear 28 and in turn meshing with a small pinion 29, mounted upon ashaft 30 and carrying a fly-wheel 31. A crank 32 is mounted on the outer end of the second shaft, and to the same is connected at pitman 33, which has its opposite end connected with a wrist-pin 34, which projects from a wrist plate 35, mounted for reciprocation in a pair of ways 36. Vith the wrist-plate is connected any ordinary pump mechanism. (Not shown.)

At one end of the motor is located a tower 37, consisting of four posts suitably bolted together at their upper ends and provided with a pulley 38. An operating weight 39 is mounted in the tower, and to the same is connected one end of a rope or cable 40, the opposite end, after having been passed over the pulley, being connected to the drum 21.

The operation of my invention is as follows: The wheels of the cars passing over the track depress the lever 3, and in so doing operate the ratchet-wheel one tooth, which partially rotates the shaft 7, and, through the medium of the master-gear, operates the small pinion of the drum-shaft'and the drum, and by reason of the disparity in the sizes of the mastergear and small pinion a few depressions of the lever 3 serve to wind the drum sufficiently to raise the weight to the top of the tower. By the time that this has been accomplished the rack-bar will have been brought toward the operating-pawl and into contact with the I same, thus raising the pawl from over the ratchet, which will permit the weight to rotate the drum, and through the train of gearin g motion will be imparted to the wrist-plate and pump mechanism, which will fill the watering-tank. When the pawl is from over the ratchet and the weightis consequently raised to its highest position, a train passing thereover will simply operate the lever, but have no effect upon the mechanism, thus preventing a breaking of the parts by an attempt to raise the weight beyond that point it is adapted to travel. As soon, however, as the weight has lowered it will be noticed that the small pinion which operates the rack-bar has been given a retrograde movement, and the pawl will gradually be swung back to a vertical position above the ratchet, and will be thus brought to a position to be again operated by the next succeeding train. In this manner the tank is always maintained full of water for the supply of the locomotive, and by providing the same with any suitable overflow for carrying off any superabundance a uniform level of the water is always maintained therein.

Having described my invention, what I claim is- 1. The combination, with a motor havinga drum, a weight, and a cable connecting the same with the drum, of a main shaft geared with the drum, a track mounted over said shaft, a ratchet mounted 011 the shaft, a pivoted lever having a tread extending above the track, and a gravity-pawl pivoted to the lever and adapted when depressed to mesh with the ratchet,whereby by successive depressions of the lever the ratchet is operated by the pawl and the weight elevated, and means for freeing the ratchet at the end of the elevation of the weight and for returning said pawl to the ratchet when the weight has been lowered, substantially as specified.

2. The combination, with a motor having a drum, a weight, and a cable connecting the same with the drum, of a main shaft geared with the drum-shaft, a track mounted over the main shaft, aratchet and pinion mounted on the shaft, a pivoted lever connected with the track and having a tread extending above the same, a gravity-pawl pivoted to the lever and adapted to operate the ratchet, and a rack-bar meshing with the pinion and having bearings under the lever, a ratchet mounted on the shaft and adapted to be operated by the pawl, and a small pinion mounted at one side of the ratchet and meshing with the rackbar, a master-gear mounted on the shaft, and a weight-operating motor connected with the pump, the drum-shaft of said motor being provided with a pinion operated by the master-gear, substantially as specified.

4. The combination, with a motor forapump and a weight foroperating the same, of ashaft having a gearing for operating the drum of the motor, a ratchet for operating the shaft, a pawl and lever for operating the ratchet, said lever being provided with a tread and projecting above the railroad-track and adapted to be operated by successive depressions by the wheels of a train, and means for throwing the pawl out of operative position with the ratchet when the weight has been raised and during the descent of the weight and returning it'to operative position after such descent, substantially as specified.

5. The motor comprising a drum, a weight for operating the drum, a cable connecting the drum and weight, and a series of speedincreasing gears connected with and operated by the drum, in combination with mechanism for winding the drum to raise the weight, a pitman connected to one of the gears of the motor, and a wrist-plate mounted in guides in the motor-frame connected with the pitman and to a pump, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

JOHN JOHNSON. NVitnesses:

E. M. JENKINS, F. M. JENKINS. 

